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< / li >
< li class = "class-depth-1" >
< a href = "PIXI.DisplayObject.html" > DisplayObject< / a >
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< a href = "PIXI.DisplayObjectContainer.html" > DisplayObjectContainer< / a >
< / li >
< li class = "class-depth-1" >
< a href = "PIXI.Event.html" > Event< / a >
< / li >
< li class = "class-depth-1" >
< a href = "PIXI.EventTarget.html" > EventTarget< / a >
< / li >
< li class = "class-depth-1" >
< a href = "PIXI.FilterTexture.html" > FilterTexture< / a >
< / li >
< li class = "class-depth-1" >
< a href = "PIXI.Graphics.html" > Graphics< / a >
< / li >
< li class = "class-depth-1" >
< a href = "PIXI.GraphicsData.html" > GraphicsData< / a >
< / li >
< li class = "class-depth-1" >
< a href = "PIXI.PIXI.html" > PIXI< / a >
< / li >
< li class = "class-depth-1" >
< a href = "PIXI.PixiFastShader.html" > PixiFastShader< / a >
< / li >
< li class = "class-depth-1" >
< a href = "PIXI.PixiShader.html" > PixiShader< / a >
< / li >
< li class = "class-depth-1" >
2015-03-23 23:46:30 +00:00
< a href = "PIXI.PolyK.html" > PolyK< / a >
2014-11-15 20:01:46 +00:00
< / li >
< li class = "class-depth-1" >
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< a href = "PIXI.PrimitiveShader.html" > PrimitiveShader< / a >
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< / li >
< li class = "class-depth-1" >
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< a href = "PIXI.RenderTexture.html" > RenderTexture< / a >
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< / li >
< li class = "class-depth-1" >
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< a href = "PIXI.Rope.html" > Rope< / a >
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< / li >
< li class = "class-depth-1" >
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< a href = "PIXI.Sprite.html" > Sprite< / a >
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< li class = "class-depth-1" >
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< a href = "PIXI.SpriteBatch.html" > SpriteBatch< / a >
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< li class = "class-depth-1" >
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< / li >
< li class = "class-depth-1" >
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< / li >
< li class = "class-depth-1" >
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< / li >
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< / li >
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< li class = "class-depth-1" >
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< li class = "class-depth-1" >
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< li class = "class-depth-1" >
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< a href = "PIXI.WebGLRenderer.html" > WebGLRenderer< / a >
2014-11-15 20:01:46 +00:00
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< / ul >
< / li >
< li class = "dropdown" >
< a href = "global.html" class = "dropdown-toggle" data-toggle = "dropdown" > Global< b
class="caret">< / b > < / a >
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< a href = "global.html#CANVAS_FILTER" > CANVAS_FILTER< / a >
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< a href = "global.html#POLYGON" > POLYGON< / a >
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< a href = "global.html#RECTANGLE" > RECTANGLE< / a >
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< a href = "global.html#RENDERTEXTURE" > RENDERTEXTURE< / a >
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< li class = "class-depth-0" >
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< li class = "class-depth-0" >
< a href = "global.html#TEXT" > TEXT< / a >
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< / li >
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< li class = "class-depth-0" >
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< a href = "global.html#TILEMAPLAYER" > TILEMAPLAYER< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#TILESPRITE" > TILESPRITE< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#UP" > UP< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#VERSION" > VERSION< / a >
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< a href = "global.html#VIDEO" > VIDEO< / a >
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2014-11-25 00:23:44 +00:00
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2014-12-03 10:39:11 +00:00
< li class = "class-depth-1" > < a href = "Phaser.Game.html" > Game< / a > < / li >
2014-11-25 00:23:44 +00:00
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< li class = "class-depth-1" > < a href = "Phaser.World.html" > World< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Loader.html" > Loader< / a > < / li >
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< li class = "class-depth-1" > < a href = "Phaser.Cache.html" > Cache< / a > < / li >
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< li class = "class-depth-1" > < a href = "Phaser.Time.html" > Time< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Camera.html" > Camera< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.StateManager.html" > State Manager< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.TweenManager.html" > Tween Manager< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.SoundManager.html" > Sound Manager< / a > < / li >
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< li class = "class-depth-1" > < a href = "Phaser.Input.html" > Input Manager< / a > < / li >
2014-11-25 00:23:44 +00:00
< li class = "class-depth-1" > < a href = "Phaser.ScaleManager.html" > Scale Manager< / a > < / li >
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2014-11-15 20:01:46 +00:00
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< ul class = "dropdown-menu " >
2014-11-25 00:23:44 +00:00
< li class = "class-depth-1" > < a href = "Phaser.GameObjectFactory.html" > Factory (game.add)< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.GameObjectCreator.html" > Creator (game.make)< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Sprite.html" > Sprite< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Image.html" > Image< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Sound.html" > Sound< / a > < / li >
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< li class = "class-depth-1" > < a href = "Phaser.Video.html" > Video< / a > < / li >
2015-01-06 06:57:25 +00:00
< li class = "class-depth-1" > < a href = "Phaser.Particles.Arcade.Emitter.html" > Particle Emitter< / a > < / li >
2014-12-03 10:39:11 +00:00
< li class = "class-depth-1" > < a href = "Phaser.Particle.html" > Particle< / a > < / li >
2014-11-25 00:23:44 +00:00
< li class = "class-depth-1" > < a href = "Phaser.Text.html" > Text< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Tween.html" > Tween< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.BitmapText.html" > BitmapText< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Tilemap.html" > Tilemap< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.BitmapData.html" > BitmapData< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.RetroFont.html" > RetroFont< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Button.html" > Button< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Animation.html" > Animation< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Graphics.html" > Graphics< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.RenderTexture.html" > RenderTexture< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.TileSprite.html" > TileSprite< / a > < / li >
< / ul >
< / li >
< li class = "dropdown" >
< a href = "#" class = "dropdown-toggle" data-toggle = "dropdown" > Geometry< b class = "caret" > < / b > < / a >
< ul class = "dropdown-menu " >
< li class = "class-depth-1" > < a href = "Phaser.Circle.html" > Circle< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Ellipse.html" > Ellipse< / a > < / li >
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< li class = "class-depth-1" > < a href = "Phaser.Line.html" > Line< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Matrix.html" > Matrix< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Point.html" > Point< / a > < / li >
2014-11-25 00:23:44 +00:00
< li class = "class-depth-1" > < a href = "Phaser.Polygon.html" > Polygon< / a > < / li >
2015-07-22 14:31:30 +00:00
< li class = "class-depth-1" > < a href = "Phaser.Rectangle.html" > Rectangle< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.RoundedRectangle.html" > Rounded Rectangle< / a > < / li >
2014-11-25 00:23:44 +00:00
< / ul >
< / li >
2014-11-15 20:01:46 +00:00
2014-11-25 00:23:44 +00:00
< li class = "dropdown" >
< a href = "#" class = "dropdown-toggle" data-toggle = "dropdown" > Physics< b class = "caret" > < / b > < / a >
< ul class = "dropdown-menu " >
< li class = "class-depth-1" > < a href = "Phaser.Physics.Arcade.html" > Arcade Physics< / a > < / li >
< li class = "class-depth-2" > < a href = "Phaser.Physics.Arcade.Body.html" > Body< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Physics.P2.html" > P2 Physics< / a > < / li >
< li class = "class-depth-2" > < a href = "Phaser.Physics.P2.Body.html" > Body< / a > < / li >
< li class = "class-depth-2" > < a href = "Phaser.Physics.P2.Spring.html" > Spring< / a > < / li >
< li class = "class-depth-2" > < a href = "Phaser.Physics.P2.CollisionGroup.html" > CollisionGroup< / a > < / li >
< li class = "class-depth-2" > < a href = "Phaser.Physics.P2.ContactMaterial.html" > ContactMaterial< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Physics.Ninja.html" > Ninja Physics< / a > < / li >
< li class = "class-depth-2" > < a href = "Phaser.Physics.Body.html" > Body< / a > < / li >
2014-11-15 20:01:46 +00:00
< / ul >
< / li >
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< li class = "dropdown" >
< a href = "#" class = "dropdown-toggle" data-toggle = "dropdown" > Input< b class = "caret" > < / b > < / a >
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< li class = "class-depth-1" > < a href = "Phaser.InputHandler.html" > Input Handler< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Pointer.html" > Pointer< / a > < / li >
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< li class = "class-depth-1" > < a href = "Phaser.DeviceButton.html" > Device Button< / a > < / li >
2014-11-25 00:23:44 +00:00
< li class = "class-depth-1" > < a href = "Phaser.Mouse.html" > Mouse< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Keyboard.html" > Keyboard< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Key.html" > Key< / a > < / li >
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< / ul >
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< ul class = "dropdown-menu " >
2015-03-26 02:55:18 +00:00
< li class = "class-depth-1" > < a href = "http://phaser.io" > Phaser Web Site< / a > < / li >
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< li class = "class-depth-1" > < a href = "https://github.com/photonstorm/phaser" > Phaser Github< / a > < / li >
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< li class = "class-depth-1" > < a href = "http://phaser.io/examples" > Phaser Examples< / a > < / li >
2014-11-25 00:23:44 +00:00
< li class = "class-depth-1" > < a href = "https://github.com/photonstorm/phaser-plugins" > Phaser Plugins< / a > < / li >
< li class = "class-depth-1" > < a href = "http://www.html5gamedevs.com/forum/14-phaser/" > Forum< / a > < / li >
< li class = "class-depth-1" > < a href = "http://stackoverflow.com/questions/tagged/phaser-framework" > Stack Overflow< / a > < / li >
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< li class = "class-depth-1" > < a href = "http://phaser.io/learn" > Tutorials< / a > < / li >
2014-11-25 00:23:44 +00:00
< li class = "class-depth-1" > < a href = "https://confirmsubscription.com/h/r/369DE48E3E86AF1E" > Newsletter< / a > < / li >
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< li class = "class-depth-1" > < a href = "http://phaser.io/community/twitter" > Twitter< / a > < / li >
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2015-03-23 23:46:30 +00:00
< li class = "class-depth-1" > < a href = "https://www.codeandweb.com/texturepacker/phaser" > Texture Packer< / a > < / li >
2014-11-25 00:23:44 +00:00
< / ul >
< / li >
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< / ul >
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< div class = "row-fluid" >
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< div id = "main" >
2015-03-23 23:46:30 +00:00
< h1 class = "page-title" > Source: src/pixi/renderers/webgl/utils/WebGLGraphics.js< / h1 >
2014-11-15 20:01:46 +00:00
< section >
< article >
< pre class = "sunlight-highlight-javascript linenums" > /**
* @author Mat Groves http://matgroves.com/ @Doormat23
*/
/**
* A set of functions used by the webGL renderer to draw the primitive graphics data
*
* @class WebGLGraphics
* @private
* @static
*/
PIXI.WebGLGraphics = function()
{
};
/**
* Renders the graphics object
*
* @static
* @private
* @method renderGraphics
* @param graphics {Graphics}
* @param renderSession {Object}
*/
PIXI.WebGLGraphics.renderGraphics = function(graphics, renderSession)//projection, offset)
{
var gl = renderSession.gl;
var projection = renderSession.projection,
offset = renderSession.offset,
shader = renderSession.shaderManager.primitiveShader,
webGLData;
if(graphics.dirty)
{
PIXI.WebGLGraphics.updateGraphics(graphics, gl);
}
var webGL = graphics._webGL[gl.id];
// This could be speeded up for sure!
for (var i = 0; i < webGL.data.length; i++)
{
if(webGL.data[i].mode === 1)
{
webGLData = webGL.data[i];
renderSession.stencilManager.pushStencil(graphics, webGLData, renderSession);
// render quad..
gl.drawElements(gl.TRIANGLE_FAN, 4, gl.UNSIGNED_SHORT, ( webGLData.indices.length - 4 ) * 2 );
renderSession.stencilManager.popStencil(graphics, webGLData, renderSession);
}
else
{
webGLData = webGL.data[i];
renderSession.shaderManager.setShader( shader );//activatePrimitiveShader();
shader = renderSession.shaderManager.primitiveShader;
gl.uniformMatrix3fv(shader.translationMatrix, false, graphics.worldTransform.toArray(true));
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gl.uniform1f(shader.flipY, 1);
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gl.uniform2f(shader.projectionVector, projection.x, -projection.y);
gl.uniform2f(shader.offsetVector, -offset.x, -offset.y);
gl.uniform3fv(shader.tintColor, PIXI.hex2rgb(graphics.tint));
gl.uniform1f(shader.alpha, graphics.worldAlpha);
gl.bindBuffer(gl.ARRAY_BUFFER, webGLData.buffer);
gl.vertexAttribPointer(shader.aVertexPosition, 2, gl.FLOAT, false, 4 * 6, 0);
gl.vertexAttribPointer(shader.colorAttribute, 4, gl.FLOAT, false,4 * 6, 2 * 4);
// set the index buffer!
gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, webGLData.indexBuffer);
gl.drawElements(gl.TRIANGLE_STRIP, webGLData.indices.length, gl.UNSIGNED_SHORT, 0 );
}
}
};
/**
* Updates the graphics object
*
* @static
* @private
* @method updateGraphics
* @param graphicsData {Graphics} The graphics object to update
* @param gl {WebGLContext} the current WebGL drawing context
*/
PIXI.WebGLGraphics.updateGraphics = function(graphics, gl)
{
// get the contexts graphics object
var webGL = graphics._webGL[gl.id];
// if the graphics object does not exist in the webGL context time to create it!
if(!webGL)webGL = graphics._webGL[gl.id] = {lastIndex:0, data:[], gl:gl};
// flag the graphics as not dirty as we are about to update it...
graphics.dirty = false;
var i;
// if the user cleared the graphics object we will need to clear every object
if(graphics.clearDirty)
{
graphics.clearDirty = false;
// lop through and return all the webGLDatas to the object pool so than can be reused later on
for (i = 0; i < webGL.data.length; i++)
{
var graphicsData = webGL.data[i];
graphicsData.reset();
PIXI.WebGLGraphics.graphicsDataPool.push( graphicsData );
}
// clear the array and reset the index..
webGL.data = [];
webGL.lastIndex = 0;
}
var webGLData;
// loop through the graphics datas and construct each one..
// if the object is a complex fill then the new stencil buffer technique will be used
// other wise graphics objects will be pushed into a batch..
for (i = webGL.lastIndex; i < graphics.graphicsData.length; i++)
{
var data = graphics.graphicsData[i];
if(data.type === PIXI.Graphics.POLY)
{
// need to add the points the the graphics object..
data.points = data.shape.points.slice();
if(data.shape.closed)
{
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// close the poly if the value is true!
if(data.points[0] !== data.points[data.points.length-2] || data.points[1] !== data.points[data.points.length-1])
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{
data.points.push(data.points[0], data.points[1]);
}
}
// MAKE SURE WE HAVE THE CORRECT TYPE..
if(data.fill)
{
if(data.points.length >= 6)
{
if(data.points.length < 6 * 2)
{
webGLData = PIXI.WebGLGraphics.switchMode(webGL, 0);
var canDrawUsingSimple = PIXI.WebGLGraphics.buildPoly(data, webGLData);
// console.log(canDrawUsingSimple);
if(!canDrawUsingSimple)
{
// console.log("< >>>")
webGLData = PIXI.WebGLGraphics.switchMode(webGL, 1);
PIXI.WebGLGraphics.buildComplexPoly(data, webGLData);
}
}
else
{
webGLData = PIXI.WebGLGraphics.switchMode(webGL, 1);
PIXI.WebGLGraphics.buildComplexPoly(data, webGLData);
}
}
}
if(data.lineWidth > 0)
{
webGLData = PIXI.WebGLGraphics.switchMode(webGL, 0);
PIXI.WebGLGraphics.buildLine(data, webGLData);
}
}
else
{
webGLData = PIXI.WebGLGraphics.switchMode(webGL, 0);
if(data.type === PIXI.Graphics.RECT)
{
PIXI.WebGLGraphics.buildRectangle(data, webGLData);
}
else if(data.type === PIXI.Graphics.CIRC || data.type === PIXI.Graphics.ELIP)
{
PIXI.WebGLGraphics.buildCircle(data, webGLData);
}
else if(data.type === PIXI.Graphics.RREC)
{
PIXI.WebGLGraphics.buildRoundedRectangle(data, webGLData);
}
}
webGL.lastIndex++;
}
// upload all the dirty data...
for (i = 0; i < webGL.data.length; i++)
{
webGLData = webGL.data[i];
if(webGLData.dirty)webGLData.upload();
}
};
/**
* @static
* @private
* @method switchMode
* @param webGL {WebGLContext}
* @param type {Number}
*/
PIXI.WebGLGraphics.switchMode = function(webGL, type)
{
var webGLData;
if(!webGL.data.length)
{
webGLData = PIXI.WebGLGraphics.graphicsDataPool.pop() || new PIXI.WebGLGraphicsData(webGL.gl);
webGLData.mode = type;
webGL.data.push(webGLData);
}
else
{
webGLData = webGL.data[webGL.data.length-1];
if(webGLData.mode !== type || type === 1)
{
webGLData = PIXI.WebGLGraphics.graphicsDataPool.pop() || new PIXI.WebGLGraphicsData(webGL.gl);
webGLData.mode = type;
webGL.data.push(webGLData);
}
}
webGLData.dirty = true;
return webGLData;
};
/**
* Builds a rectangle to draw
*
* @static
* @private
* @method buildRectangle
* @param graphicsData {Graphics} The graphics object containing all the necessary properties
* @param webGLData {Object}
*/
PIXI.WebGLGraphics.buildRectangle = function(graphicsData, webGLData)
{
// --- //
// need to convert points to a nice regular data
//
var rectData = graphicsData.shape;
var x = rectData.x;
var y = rectData.y;
var width = rectData.width;
var height = rectData.height;
if(graphicsData.fill)
{
var color = PIXI.hex2rgb(graphicsData.fillColor);
var alpha = graphicsData.fillAlpha;
var r = color[0] * alpha;
var g = color[1] * alpha;
var b = color[2] * alpha;
var verts = webGLData.points;
var indices = webGLData.indices;
var vertPos = verts.length/6;
// start
verts.push(x, y);
verts.push(r, g, b, alpha);
verts.push(x + width, y);
verts.push(r, g, b, alpha);
verts.push(x , y + height);
verts.push(r, g, b, alpha);
verts.push(x + width, y + height);
verts.push(r, g, b, alpha);
// insert 2 dead triangles..
indices.push(vertPos, vertPos, vertPos+1, vertPos+2, vertPos+3, vertPos+3);
}
if(graphicsData.lineWidth)
{
var tempPoints = graphicsData.points;
graphicsData.points = [x, y,
x + width, y,
x + width, y + height,
x, y + height,
x, y];
PIXI.WebGLGraphics.buildLine(graphicsData, webGLData);
graphicsData.points = tempPoints;
}
};
/**
* Builds a rounded rectangle to draw
*
* @static
* @private
* @method buildRoundedRectangle
* @param graphicsData {Graphics} The graphics object containing all the necessary properties
* @param webGLData {Object}
*/
PIXI.WebGLGraphics.buildRoundedRectangle = function(graphicsData, webGLData)
{
var rrectData = graphicsData.shape;
var x = rrectData.x;
var y = rrectData.y;
var width = rrectData.width;
var height = rrectData.height;
var radius = rrectData.radius;
var recPoints = [];
recPoints.push(x, y + radius);
recPoints = recPoints.concat(PIXI.WebGLGraphics.quadraticBezierCurve(x, y + height - radius, x, y + height, x + radius, y + height));
recPoints = recPoints.concat(PIXI.WebGLGraphics.quadraticBezierCurve(x + width - radius, y + height, x + width, y + height, x + width, y + height - radius));
recPoints = recPoints.concat(PIXI.WebGLGraphics.quadraticBezierCurve(x + width, y + radius, x + width, y, x + width - radius, y));
recPoints = recPoints.concat(PIXI.WebGLGraphics.quadraticBezierCurve(x + radius, y, x, y, x, y + radius));
if (graphicsData.fill) {
var color = PIXI.hex2rgb(graphicsData.fillColor);
var alpha = graphicsData.fillAlpha;
var r = color[0] * alpha;
var g = color[1] * alpha;
var b = color[2] * alpha;
var verts = webGLData.points;
var indices = webGLData.indices;
var vecPos = verts.length/6;
var triangles = PIXI.PolyK.Triangulate(recPoints);
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//
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var i = 0;
for (i = 0; i < triangles.length; i+=3)
{
indices.push(triangles[i] + vecPos);
indices.push(triangles[i] + vecPos);
indices.push(triangles[i+1] + vecPos);
indices.push(triangles[i+2] + vecPos);
indices.push(triangles[i+2] + vecPos);
}
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for (i = 0; i < recPoints.length; i++)
{
verts.push(recPoints[i], recPoints[++i], r, g, b, alpha);
}
}
if (graphicsData.lineWidth) {
var tempPoints = graphicsData.points;
graphicsData.points = recPoints;
PIXI.WebGLGraphics.buildLine(graphicsData, webGLData);
graphicsData.points = tempPoints;
}
};
/**
* Calculate the points for a quadratic bezier curve. (helper function..)
* Based on: https://stackoverflow.com/questions/785097/how-do-i-implement-a-bezier-curve-in-c
*
* @static
* @private
* @method quadraticBezierCurve
* @param fromX {Number} Origin point x
* @param fromY {Number} Origin point x
* @param cpX {Number} Control point x
* @param cpY {Number} Control point y
* @param toX {Number} Destination point x
* @param toY {Number} Destination point y
* @return {Array(Number)}
*/
PIXI.WebGLGraphics.quadraticBezierCurve = function(fromX, fromY, cpX, cpY, toX, toY) {
var xa,
ya,
xb,
yb,
x,
y,
n = 20,
points = [];
function getPt(n1 , n2, perc) {
var diff = n2 - n1;
return n1 + ( diff * perc );
}
var j = 0;
for (var i = 0; i < = n; i++ )
{
j = i / n;
// The Green Line
xa = getPt( fromX , cpX , j );
ya = getPt( fromY , cpY , j );
xb = getPt( cpX , toX , j );
yb = getPt( cpY , toY , j );
// The Black Dot
x = getPt( xa , xb , j );
y = getPt( ya , yb , j );
points.push(x, y);
}
return points;
};
/**
* Builds a circle to draw
*
* @static
* @private
* @method buildCircle
* @param graphicsData {Graphics} The graphics object to draw
* @param webGLData {Object}
*/
PIXI.WebGLGraphics.buildCircle = function(graphicsData, webGLData)
{
// need to convert points to a nice regular data
var circleData = graphicsData.shape;
var x = circleData.x;
var y = circleData.y;
var width;
var height;
// TODO - bit hacky??
if(graphicsData.type === PIXI.Graphics.CIRC)
{
width = circleData.radius;
height = circleData.radius;
}
else
{
width = circleData.width;
height = circleData.height;
}
var totalSegs = 40;
var seg = (Math.PI * 2) / totalSegs ;
var i = 0;
if(graphicsData.fill)
{
var color = PIXI.hex2rgb(graphicsData.fillColor);
var alpha = graphicsData.fillAlpha;
var r = color[0] * alpha;
var g = color[1] * alpha;
var b = color[2] * alpha;
var verts = webGLData.points;
var indices = webGLData.indices;
var vecPos = verts.length/6;
indices.push(vecPos);
for (i = 0; i < totalSegs + 1 ; i++)
{
verts.push(x,y, r, g, b, alpha);
verts.push(x + Math.sin(seg * i) * width,
y + Math.cos(seg * i) * height,
r, g, b, alpha);
indices.push(vecPos++, vecPos++);
}
indices.push(vecPos-1);
}
if(graphicsData.lineWidth)
{
var tempPoints = graphicsData.points;
graphicsData.points = [];
for (i = 0; i < totalSegs + 1; i++)
{
graphicsData.points.push(x + Math.sin(seg * i) * width,
y + Math.cos(seg * i) * height);
}
PIXI.WebGLGraphics.buildLine(graphicsData, webGLData);
graphicsData.points = tempPoints;
}
};
/**
* Builds a line to draw
*
* @static
* @private
* @method buildLine
* @param graphicsData {Graphics} The graphics object containing all the necessary properties
* @param webGLData {Object}
*/
PIXI.WebGLGraphics.buildLine = function(graphicsData, webGLData)
{
// TODO OPTIMISE!
var i = 0;
var points = graphicsData.points;
if(points.length === 0)return;
// if the line width is an odd number add 0.5 to align to a whole pixel
if(graphicsData.lineWidth%2)
{
for (i = 0; i < points.length; i++) {
points[i] += 0.5;
}
}
// get first and last point.. figure out the middle!
var firstPoint = new PIXI.Point( points[0], points[1] );
var lastPoint = new PIXI.Point( points[points.length - 2], points[points.length - 1] );
// if the first point is the last point - gonna have issues :)
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if(firstPoint.x === lastPoint.x & & firstPoint.y === lastPoint.y)
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{
// need to clone as we are going to slightly modify the shape..
points = points.slice();
points.pop();
points.pop();
lastPoint = new PIXI.Point( points[points.length - 2], points[points.length - 1] );
var midPointX = lastPoint.x + (firstPoint.x - lastPoint.x) *0.5;
var midPointY = lastPoint.y + (firstPoint.y - lastPoint.y) *0.5;
points.unshift(midPointX, midPointY);
points.push(midPointX, midPointY);
}
var verts = webGLData.points;
var indices = webGLData.indices;
var length = points.length / 2;
var indexCount = points.length;
var indexStart = verts.length/6;
// DRAW the Line
var width = graphicsData.lineWidth / 2;
// sort color
var color = PIXI.hex2rgb(graphicsData.lineColor);
var alpha = graphicsData.lineAlpha;
var r = color[0] * alpha;
var g = color[1] * alpha;
var b = color[2] * alpha;
var px, py, p1x, p1y, p2x, p2y, p3x, p3y;
var perpx, perpy, perp2x, perp2y, perp3x, perp3y;
var a1, b1, c1, a2, b2, c2;
var denom, pdist, dist;
p1x = points[0];
p1y = points[1];
p2x = points[2];
p2y = points[3];
perpx = -(p1y - p2y);
perpy = p1x - p2x;
dist = Math.sqrt(perpx*perpx + perpy*perpy);
perpx /= dist;
perpy /= dist;
perpx *= width;
perpy *= width;
// start
verts.push(p1x - perpx , p1y - perpy,
r, g, b, alpha);
verts.push(p1x + perpx , p1y + perpy,
r, g, b, alpha);
for (i = 1; i < length-1; i++)
{
p1x = points[(i-1)*2];
p1y = points[(i-1)*2 + 1];
p2x = points[(i)*2];
p2y = points[(i)*2 + 1];
p3x = points[(i+1)*2];
p3y = points[(i+1)*2 + 1];
perpx = -(p1y - p2y);
perpy = p1x - p2x;
dist = Math.sqrt(perpx*perpx + perpy*perpy);
perpx /= dist;
perpy /= dist;
perpx *= width;
perpy *= width;
perp2x = -(p2y - p3y);
perp2y = p2x - p3x;
dist = Math.sqrt(perp2x*perp2x + perp2y*perp2y);
perp2x /= dist;
perp2y /= dist;
perp2x *= width;
perp2y *= width;
a1 = (-perpy + p1y) - (-perpy + p2y);
b1 = (-perpx + p2x) - (-perpx + p1x);
c1 = (-perpx + p1x) * (-perpy + p2y) - (-perpx + p2x) * (-perpy + p1y);
a2 = (-perp2y + p3y) - (-perp2y + p2y);
b2 = (-perp2x + p2x) - (-perp2x + p3x);
c2 = (-perp2x + p3x) * (-perp2y + p2y) - (-perp2x + p2x) * (-perp2y + p3y);
denom = a1*b2 - a2*b1;
if(Math.abs(denom) < 0.1 )
{
denom+=10.1;
verts.push(p2x - perpx , p2y - perpy,
r, g, b, alpha);
verts.push(p2x + perpx , p2y + perpy,
r, g, b, alpha);
continue;
}
px = (b1*c2 - b2*c1)/denom;
py = (a2*c1 - a1*c2)/denom;
pdist = (px -p2x) * (px -p2x) + (py -p2y) + (py -p2y);
if(pdist > 140 * 140)
{
perp3x = perpx - perp2x;
perp3y = perpy - perp2y;
dist = Math.sqrt(perp3x*perp3x + perp3y*perp3y);
perp3x /= dist;
perp3y /= dist;
perp3x *= width;
perp3y *= width;
verts.push(p2x - perp3x, p2y -perp3y);
verts.push(r, g, b, alpha);
verts.push(p2x + perp3x, p2y +perp3y);
verts.push(r, g, b, alpha);
verts.push(p2x - perp3x, p2y -perp3y);
verts.push(r, g, b, alpha);
indexCount++;
}
else
{
verts.push(px , py);
verts.push(r, g, b, alpha);
verts.push(p2x - (px-p2x), p2y - (py - p2y));
verts.push(r, g, b, alpha);
}
}
p1x = points[(length-2)*2];
p1y = points[(length-2)*2 + 1];
p2x = points[(length-1)*2];
p2y = points[(length-1)*2 + 1];
perpx = -(p1y - p2y);
perpy = p1x - p2x;
dist = Math.sqrt(perpx*perpx + perpy*perpy);
perpx /= dist;
perpy /= dist;
perpx *= width;
perpy *= width;
verts.push(p2x - perpx , p2y - perpy);
verts.push(r, g, b, alpha);
verts.push(p2x + perpx , p2y + perpy);
verts.push(r, g, b, alpha);
indices.push(indexStart);
for (i = 0; i < indexCount; i++)
{
indices.push(indexStart++);
}
indices.push(indexStart-1);
};
/**
* Builds a complex polygon to draw
*
* @static
* @private
* @method buildComplexPoly
* @param graphicsData {Graphics} The graphics object containing all the necessary properties
* @param webGLData {Object}
*/
PIXI.WebGLGraphics.buildComplexPoly = function(graphicsData, webGLData)
{
//TODO - no need to copy this as it gets turned into a FLoat32Array anyways..
var points = graphicsData.points.slice();
if(points.length < 6)return;
// get first and last point.. figure out the middle!
var indices = webGLData.indices;
webGLData.points = points;
webGLData.alpha = graphicsData.fillAlpha;
webGLData.color = PIXI.hex2rgb(graphicsData.fillColor);
/*
calclate the bounds..
*/
var minX = Infinity;
var maxX = -Infinity;
var minY = Infinity;
var maxY = -Infinity;
var x,y;
// get size..
for (var i = 0; i < points.length; i+=2)
{
x = points[i];
y = points[i+1];
minX = x < minX ? x : minX;
maxX = x > maxX ? x : maxX;
minY = y < minY ? y : minY;
maxY = y > maxY ? y : maxY;
}
// add a quad to the end cos there is no point making another buffer!
points.push(minX, minY,
maxX, minY,
maxX, maxY,
minX, maxY);
// push a quad onto the end..
//TODO - this aint needed!
var length = points.length / 2;
for (i = 0; i < length; i++)
{
indices.push( i );
}
};
/**
* Builds a polygon to draw
*
* @static
* @private
* @method buildPoly
* @param graphicsData {Graphics} The graphics object containing all the necessary properties
* @param webGLData {Object}
*/
PIXI.WebGLGraphics.buildPoly = function(graphicsData, webGLData)
{
var points = graphicsData.points;
if(points.length < 6)return;
// get first and last point.. figure out the middle!
var verts = webGLData.points;
var indices = webGLData.indices;
var length = points.length / 2;
// sort color
var color = PIXI.hex2rgb(graphicsData.fillColor);
var alpha = graphicsData.fillAlpha;
var r = color[0] * alpha;
var g = color[1] * alpha;
var b = color[2] * alpha;
var triangles = PIXI.PolyK.Triangulate(points);
if(!triangles)return false;
var vertPos = verts.length / 6;
var i = 0;
for (i = 0; i < triangles.length; i+=3)
{
indices.push(triangles[i] + vertPos);
indices.push(triangles[i] + vertPos);
indices.push(triangles[i+1] + vertPos);
indices.push(triangles[i+2] +vertPos);
indices.push(triangles[i+2] + vertPos);
}
for (i = 0; i < length; i++)
{
verts.push(points[i * 2], points[i * 2 + 1],
r, g, b, alpha);
}
return true;
};
PIXI.WebGLGraphics.graphicsDataPool = [];
/**
* @class WebGLGraphicsData
* @private
* @static
*/
PIXI.WebGLGraphicsData = function(gl)
{
this.gl = gl;
//TODO does this need to be split before uploding??
this.color = [0,0,0]; // color split!
this.points = [];
this.indices = [];
this.buffer = gl.createBuffer();
this.indexBuffer = gl.createBuffer();
this.mode = 1;
this.alpha = 1;
this.dirty = true;
};
/**
* @method reset
*/
PIXI.WebGLGraphicsData.prototype.reset = function()
{
this.points = [];
this.indices = [];
};
/**
* @method upload
*/
PIXI.WebGLGraphicsData.prototype.upload = function()
{
var gl = this.gl;
// this.lastIndex = graphics.graphicsData.length;
this.glPoints = new PIXI.Float32Array(this.points);
gl.bindBuffer(gl.ARRAY_BUFFER, this.buffer);
gl.bufferData(gl.ARRAY_BUFFER, this.glPoints, gl.STATIC_DRAW);
this.glIndicies = new PIXI.Uint16Array(this.indices);
gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, this.indexBuffer);
gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, this.glIndicies, gl.STATIC_DRAW);
this.dirty = false;
};
< / pre >
< / article >
< / section >
< / div >
< div class = "clearfix" > < / div >
< footer >
< span class = "copyright" >
2015-03-23 23:46:30 +00:00
Phaser Copyright © 2012-2015 Photon Storm Ltd.
2014-11-15 20:01:46 +00:00
< / span >
< br / >
< span class = "jsdoc-message" >
2015-08-24 14:43:45 +00:00
Documentation generated by < a href = "https://github.com/jsdoc3/jsdoc" > JSDoc 3.3.2< / a >
on Mon Aug 24 2015 15:36:45 GMT+0100 (GMT Daylight Time) using the < a href = "https://github.com/terryweiss/docstrap" > DocStrap template< / a > .
2014-11-15 20:01:46 +00:00
< / span >
< / footer >
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< br clear = "both" >
< / div >
< / div >
< script src = "scripts/sunlight.js" > < / script >
< script src = "scripts/sunlight.javascript.js" > < / script >
< script src = "scripts/sunlight-plugin.doclinks.js" > < / script >
< script src = "scripts/sunlight-plugin.linenumbers.js" > < / script >
< script src = "scripts/sunlight-plugin.menu.js" > < / script >
< script src = "scripts/jquery.min.js" > < / script >
< script src = "scripts/jquery.scrollTo.js" > < / script >
< script src = "scripts/jquery.localScroll.js" > < / script >
< script src = "scripts/bootstrap-dropdown.js" > < / script >
< script src = "scripts/toc.js" > < / script >
< script > Sunlight . highlightAll ( { lineNumbers : true , showMenu : true , enableDoclinks : true } ) ; < / script >
< script >
$( function () {
$( "#toc" ).toc( {
anchorName : function(i, heading, prefix) {
return $(heading).attr("id") || ( prefix + i );
},
selectors : "h1,h2,h3,h4",
showAndHide : false,
scrollTo : 60
} );
$( "#toc>ul" ).addClass( "nav nav-pills nav-stacked" );
$( "#main span[id^='toc']" ).addClass( "toc-shim" );
} );
< / script >
< / body >
< / html >
